how many inches of sub base?

[foodie]

Hi Guys, How many inches of sub base? I am in Michigan and plan to have minimum of 5 inches of cement maybe 6 inches.

 

[Kram02]

had 4 inches of base on mine @ 6 inches of concrete

 

[foodie]

thanks Kram02

 

[audioworks04]

Minimum of 4inches if base rock. Not to be nit picky, but you don’t want a cement floor, you want a concrete floor; that’s like saying you want to eat flour instead of eating a cake. Sorry I do concrete for a living, just a pet-peeve of mine.


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[p_mori7]

I am in Montreal, and I have 12".

 

[foodie]

Minimum of 4inches if base rock. Not to be nit picky, but you don’t want a cement floor, you want a concrete floor; that’s like saying you want to eat flour instead of eating a cake. Sorry I do concrete for a living, just a pet-peeve of mine.


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Thanks so much for the reminder. I have now learned that difference when referring to my garage slab since posting that and reading new threads. Thanks again. Wish you lived close, I would have you do my job

 

[Orionrising]

Depends on you soils and drainage.

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[foodie]

I just had a bid from a contractor and he stated they use 2 to 3 inches of 21AA. Ugh! I asked you wouldn't use 4 to 6 inches? He said no,..people ask for that but it's going to crack anyway. Okay, on to the next contractor's bid....